Final answer:
While feudal-like systems such as the Mamluk Sultanate and the Ottoman Empire existed in historical periods, by the end of the 20th century, the Middle East featured various forms of governance, not traditionally feudal in nature.
Step-by-step explanation:
The end of the twentieth century did not see the presence of a feudal monarchy in the Middle East that could be singled out as the most prominent. Instead, monarchies of different kinds existed in the region. The Mamluk Sultanate was one historical example of a unique quasi-feudal system, which was ruled by elite, educated, formerly enslaved men, but this was not at the end of the twentieth century. The sultanates and empires of the Middle East, including the Ottoman Empire, evolved through time from their feudal origins into different forms of governance. By the end of the 20th century, the Middle East saw a variety of government structures, from monarchies to republics, but the term 'feudal monarchy' would be a misnomer for the contemporary forms of governance in the region at that time.